- #1,156
davenn
Science Advisor
Gold Member
2023 Award
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With stars
looks totally weird without stars
looks totally weird without stars
Devin-M said:
Andy Resnick said:I gave it a try with one of my images (downscaled to 33%, 8-bit TIFF) and it worked!
To me it looks like a lobster. M86, M84, NGC 4388, NGC 4387 are the face, NGC’s 4474, 4468, 4459 are the end of the tail, M87 & NGC 4371 are the claws. NGC 4402 is a raised eyebrow.davenn said:With stars
looks totally weird without stars
bruha said:Hello, still one sun green filt. image from today (sharpened and expos. adjusted with Gimp-I supose some granulation is recognizable ...
chemisttree said:I can’t wait for solar activity to come back!
Today’s SOHO image...
Are you observing using an aperture mask or full aperture? Here is an example of an aperture mask. Discussion here.bruha said:Hello, still one sun green filt. image from today (sharpened and expos. adjusted with Gimp-I supose some granulation is recognizable ...
I don’t think the cap will work with the full aperture foil filter but if you can... it will work. If you do that, you will be observing through a small opening in the cap and the light would go through both the foil filter and the green filter. It will be much dimmer but you should have much better resolution.bruha said:Hi, thank you for answer, I have sun baader folie over full telecope aperture. So I mean if I should apply cap with small opening after I put baader folie on telescope it will be OK?
Thanks
bruha said:Hi, it is really beautiful... what is cca app. diameter of this objects (arcsec..?)
Thank you and lot of succes!
Center (RA, Dec): | (85.333, -2.390) |
Center (RA, hms): | 05h 41m 19.894s |
Center (Dec, dms): | -02° 23' 23.720" |
Size: | 1.98 x 1.32 deg |
Radius: | 1.191 deg |
Pixel scale: | 7.13 arcsec/pixel |
Oooh! Aaahh!Devin-M said:Looks like perhaps you had a bit of local light pollution such as from a street light shining on the lens a little bit on the left side of that frame.
I’m eagerly waiting for the sun to go down to try out this 6 nm narrow band hydrogen Alpha clip in sensor filter for nikon full frame cameras on a nebula in a moonless cloudless bortle 2 tonight. It looks interesting... almost a mirror finish but takes on a reddish tinge when held up to the light.
View attachment 279096
View attachment 279097
Devin-M said:Looks like perhaps you had a bit of local light pollution such as from a street light shining on the lens a little bit on the left side of that frame